diff --git libselinux-2.8/man/man3/selinux_boolean_sub.3 libselinux-2.8/man/man3/selinux_boolean_sub.3
index 308c268..a29a38d 100644
--- libselinux-2.8/man/man3/selinux_boolean_sub.3
+++ libselinux-2.8/man/man3/selinux_boolean_sub.3
@@ -1,6 +1,6 @@
 .TH "selinux_boolean_sub" "3" "11 June 2012" "dwalsh@redhat.com" "SELinux API documentation"
 .SH "NAME"
-selinux_boolean_sub \-
+selinux_boolean_sub \- Search the translated name for a boolean_name record
 .
 .SH "SYNOPSIS"
 .B #include <selinux/selinux.h>
@@ -12,7 +12,7 @@ selinux_boolean_sub \-
 searches the
 .I \%/etc/selinux/{POLICYTYPE}/booleans.subs_dist
 file
-for a maching boolean_name record.  If the record exists the boolean substitution name is returned.  If not
+for a matching boolean_name record.  If the record exists the boolean substitution name is returned.  If not
 .BR \%selinux_boolean_sub ()
 returns the original
 .IR \%boolean_name .
diff --git libselinux-2.8/man/man3/selinux_restorecon_xattr.3 libselinux-2.8/man/man3/selinux_restorecon_xattr.3
index 7280c95..516d266 100644
--- libselinux-2.8/man/man3/selinux_restorecon_xattr.3
+++ libselinux-2.8/man/man3/selinux_restorecon_xattr.3
@@ -119,7 +119,7 @@ By default
 .BR selinux_restorecon_xattr (3)
 will use the default set of specfiles described in
 .BR files_contexts (5)
-to calculate the initial SHA1 digest to be used for comparision.
+to calculate the initial SHA1 digest to be used for comparison.
 To change this default behavior
 .BR selabel_open (3)
 must be called specifying the required
diff --git libselinux-2.8/man/man5/selabel_file.5 libselinux-2.8/man/man5/selabel_file.5
index e738824..e97bd82 100644
--- libselinux-2.8/man/man5/selabel_file.5
+++ libselinux-2.8/man/man5/selabel_file.5
@@ -92,7 +92,7 @@ The optional local and distribution substitution files that perform any path ali
 .RE
 .sp
 The default file context series of files are:
-.RS
+.RS 6
 .I /etc/selinux/{SELINUXTYPE}/contexts/files/file_contexts
 .br
 .I  /etc/selinux/{SELINUXTYPE}/contexts/files/file_contexts.local
diff --git libselinux-2.8/man/man8/selinux.8 libselinux-2.8/man/man8/selinux.8
index e37aee6..bf23b65 100644
--- libselinux-2.8/man/man8/selinux.8
+++ libselinux-2.8/man/man8/selinux.8
@@ -91,11 +91,13 @@ This manual page was written by Dan Walsh <dwalsh@redhat.com>.
 .BR sepolicy (8),
 .BR system-config-selinux (8),
 .BR togglesebool (8),
-.BR restorecon (8),
 .BR fixfiles (8),
+.BR restorecon (8),
 .BR setfiles (8),
 .BR semanage (8),
 .BR sepolicy (8)
+.BR seinfo (8),
+.BR sesearch (8)
 
 Every confined service on the system has a man page in the following format:
 .br
diff --git libselinux-2.8/src/audit2why.c libselinux-2.8/src/audit2why.c
index 0331fdf..5a1e69a 100644
--- libselinux-2.8/src/audit2why.c
+++ libselinux-2.8/src/audit2why.c
@@ -354,7 +354,7 @@ static PyObject *analyze(PyObject *self __attribute__((unused)) , PyObject *args
 	/* iterate over items of the list, grabbing strings, and parsing
 	   for numbers */
 	for (i=0; i<numlines; i++){
-		char *permstr;
+		const char *permstr;
 
 		/* grab the string object from the next element of the list */
 		strObj = PyList_GetItem(listObj, i); /* Can't fail */
diff --git libselinux-2.8/src/avc_sidtab.c libselinux-2.8/src/avc_sidtab.c
index 9669264..c775430 100644
--- libselinux-2.8/src/avc_sidtab.c
+++ libselinux-2.8/src/avc_sidtab.c
@@ -81,6 +81,11 @@ sidtab_context_to_sid(struct sidtab *s,
 	int hvalue, rc = 0;
 	struct sidtab_node *cur;
 
+	if (! ctx) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	*sid = NULL;
 	hvalue = sidtab_hash(ctx);
 
diff --git libselinux-2.8/src/booleans.c libselinux-2.8/src/booleans.c
index b3ea362..a6d46fe 100644
--- libselinux-2.8/src/booleans.c
+++ libselinux-2.8/src/booleans.c
@@ -55,6 +55,7 @@ int security_get_boolean_names(char ***names, int *len)
 	snprintf(path, sizeof path, "%s%s", selinux_mnt, SELINUX_BOOL_DIR);
 	*len = scandir(path, &namelist, &filename_select, alphasort);
 	if (*len <= 0) {
+		errno = ENOENT;
 		return -1;
 	}
 
diff --git libselinux-2.8/src/canonicalize_context.c libselinux-2.8/src/canonicalize_context.c
index ba4c9a2..c815872 100644
--- libselinux-2.8/src/canonicalize_context.c
+++ libselinux-2.8/src/canonicalize_context.c
@@ -17,6 +17,11 @@ int security_canonicalize_context_raw(const char * con,
 	size_t size;
 	int fd, ret;
 
+	if (! con) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	if (!selinux_mnt) {
 		errno = ENOENT;
 		return -1;
diff --git libselinux-2.8/src/check_context.c libselinux-2.8/src/check_context.c
index 8a7997f..5be8434 100644
--- libselinux-2.8/src/check_context.c
+++ libselinux-2.8/src/check_context.c
@@ -14,6 +14,11 @@ int security_check_context_raw(const char * con)
 	char path[PATH_MAX];
 	int fd, ret;
 
+	if (! con) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	if (!selinux_mnt) {
 		errno = ENOENT;
 		return -1;
diff --git libselinux-2.8/src/compute_av.c libselinux-2.8/src/compute_av.c
index 1d05e7b..d9095cc 100644
--- libselinux-2.8/src/compute_av.c
+++ libselinux-2.8/src/compute_av.c
@@ -26,6 +26,11 @@ int security_compute_av_flags_raw(const char * scon,
 		return -1;
 	}
 
+	if ((! scon) || (! tcon)) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	snprintf(path, sizeof path, "%s/access", selinux_mnt);
 	fd = open(path, O_RDWR | O_CLOEXEC);
 	if (fd < 0)
diff --git libselinux-2.8/src/compute_create.c libselinux-2.8/src/compute_create.c
index 0975aea..3e6a48c 100644
--- libselinux-2.8/src/compute_create.c
+++ libselinux-2.8/src/compute_create.c
@@ -64,6 +64,11 @@ int security_compute_create_name_raw(const char * scon,
 		return -1;
 	}
 
+	if ((! scon) || (! tcon)) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	snprintf(path, sizeof path, "%s/create", selinux_mnt);
 	fd = open(path, O_RDWR | O_CLOEXEC);
 	if (fd < 0)
diff --git libselinux-2.8/src/compute_member.c libselinux-2.8/src/compute_member.c
index 4e2d221..d1dd977 100644
--- libselinux-2.8/src/compute_member.c
+++ libselinux-2.8/src/compute_member.c
@@ -25,6 +25,11 @@ int security_compute_member_raw(const char * scon,
 		return -1;
 	}
 
+	if ((! scon) || (! tcon)) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	snprintf(path, sizeof path, "%s/member", selinux_mnt);
 	fd = open(path, O_RDWR | O_CLOEXEC);
 	if (fd < 0)
diff --git libselinux-2.8/src/compute_relabel.c libselinux-2.8/src/compute_relabel.c
index 49f77ef..c3db7c0 100644
--- libselinux-2.8/src/compute_relabel.c
+++ libselinux-2.8/src/compute_relabel.c
@@ -25,6 +25,11 @@ int security_compute_relabel_raw(const char * scon,
 		return -1;
 	}
 
+	if ((! scon) || (! tcon)) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	snprintf(path, sizeof path, "%s/relabel", selinux_mnt);
 	fd = open(path, O_RDWR | O_CLOEXEC);
 	if (fd < 0)
diff --git libselinux-2.8/src/compute_user.c libselinux-2.8/src/compute_user.c
index 7b88121..401fd10 100644
--- libselinux-2.8/src/compute_user.c
+++ libselinux-2.8/src/compute_user.c
@@ -24,6 +24,11 @@ int security_compute_user_raw(const char * scon,
 		return -1;
 	}
 
+	if (! scon) {
+		errno=EINVAL;
+		return -1;
+	}
+
 	snprintf(path, sizeof path, "%s/user", selinux_mnt);
 	fd = open(path, O_RDWR | O_CLOEXEC);
 	if (fd < 0)
diff --git libselinux-2.8/src/fsetfilecon.c libselinux-2.8/src/fsetfilecon.c
index 52707d0..0cbe12d 100644
--- libselinux-2.8/src/fsetfilecon.c
+++ libselinux-2.8/src/fsetfilecon.c
@@ -9,8 +9,12 @@
 
 int fsetfilecon_raw(int fd, const char * context)
 {
-	int rc = fsetxattr(fd, XATTR_NAME_SELINUX, context, strlen(context) + 1,
-			 0);
+	int rc;
+	if (! context) {
+		errno=EINVAL;
+		return -1;
+	}
+	rc = fsetxattr(fd, XATTR_NAME_SELINUX, context, strlen(context) + 1, 0);
 	if (rc < 0 && errno == ENOTSUP) {
 		char * ccontext = NULL;
 		int err = errno;
diff --git libselinux-2.8/src/lsetfilecon.c libselinux-2.8/src/lsetfilecon.c
index 1d3b28a..ea6d70b 100644
--- libselinux-2.8/src/lsetfilecon.c
+++ libselinux-2.8/src/lsetfilecon.c
@@ -9,8 +9,13 @@
 
 int lsetfilecon_raw(const char *path, const char * context)
 {
-	int rc = lsetxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1,
-			 0);
+	int rc;
+	if (! context) {
+		errno=EINVAL;
+		return -1;
+	}
+
+	rc = lsetxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1, 0);
 	if (rc < 0 && errno == ENOTSUP) {
 		char * ccontext = NULL;
 		int err = errno;
diff --git libselinux-2.8/src/setfilecon.c libselinux-2.8/src/setfilecon.c
index d05969c..3f0200e 100644
--- libselinux-2.8/src/setfilecon.c
+++ libselinux-2.8/src/setfilecon.c
@@ -9,8 +9,12 @@
 
 int setfilecon_raw(const char *path, const char * context)
 {
-	int rc = setxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1,
-			0);
+	int rc;
+	if (! context) {
+		errno=EINVAL;
+		return -1;
+	}
+	rc = setxattr(path, XATTR_NAME_SELINUX, context, strlen(context) + 1, 0);
 	if (rc < 0 && errno == ENOTSUP) {
 		char * ccontext = NULL;
 		int err = errno;
diff --git libselinux-2.8/utils/matchpathcon.c libselinux-2.8/utils/matchpathcon.c
index 67e4a43..9756d7d 100644
--- libselinux-2.8/utils/matchpathcon.c
+++ libselinux-2.8/utils/matchpathcon.c
@@ -14,7 +14,7 @@
 static __attribute__ ((__noreturn__)) void usage(const char *progname)
 {
 	fprintf(stderr,
-		"usage:  %s [-N] [-n] [-f file_contexts] [ -P policy_root_path ] [-p prefix] [-Vq] path...\n",
+		"usage:  %s [-V] [-N] [-n] [-m type] [-f file_contexts_file] [-p prefix] [-P policy_root_path] filepath...\n",
 		progname);
 	exit(1);
 }